Snap-fastener.



l. MOSS.

SNAP FASTENER.

APPLICATION msnocr. 4, |911.

1,268,701. Patented June 11, 191.8'.l

A f jmywg Fig.`7 is a view `ISIlDOIEt MGSS, OTE'` BROOKLINE, MASSACHUSETT sNAr-rasrniqna.

Specification of Letters Patent Patent-.ed June 11, 1918.

Application tiled October 4, 1917.` Serial No. 194,793.

To all Iwom 1E/may concern.'

Beit known that I, Isioon Moss, a citizen of the United States, residing at `Brook- `line, in the county of Norfolk and State 0f Massachusetts, have invented new and use- `ful Improvements in Snap-Fasteners, of

which the following is a specification.

`This invention relates to a snap fastener comprising a male' `member or stud and a femalel member or socket, the male member being adapted to snap `into the female membei and be retained therein by its own resilieiice.

The object of the invention is to provide a snap fastener of this character, the members of which, while adapted to be readily interengaged and separated, are firmly interlocked against liability of accidental separation.

The invention is embodied in the improvements which I will now proceed to describe and claim. i

Of the accompanying drawings forming a part of this specification and illustrating the preferred embodiment of the invention,

Figure 1 is a plan view of themaleor stud member of my improved fastener.

Fig. 2 .is a plan View of the female or socket member.

Fig. 3 is a section on line 3`3 of Fig. 1.

Fig. et is a section onlinelllv-t of Fig. 1.

Fig. 5 is a section on line .VF-5 of Fig. 2.

Fig. 6 is a sectional view showing the members interlocked, the section through the male member being on theplane of line 3-3 of Fig. l. r similar to Fig. 6, the section through the male member beinglon the plane of line 4-1 of Fig. 1.

The same reference characters indicate the same parts in all of the iigures.

`The male or stud member of my improved fastener is preferably formed from a single blank of sheet metal and has attaching means, preferably embodied ina circular flange 12, and a stud composed of a circular shank 13, and a head 14.

The periphery of the head has a portion of relatively large diameter and a portion of smaller diameter, the portion of larger diameter being formed by two segmental portions 15 havin a common center, and the portions of a sma ler diameter being formed by reduced attened portions 16 which may be produced by cutting the head away or forcing it inwardly at intervals.

The larger diameter of the stud head is greater than that of the circular shank 13, the segmental portions 15 overlianging the shank, as indicated by Figs. 3 and 6. The smaller diameter of the head is substantially equal to the diameter of the shank, as indicated by Figs. 4 and 7. The larger diameter of the stud member is rendered resilient and coinpressible by the slot 18 `intersectingthe reduced portions 16. Said slot permits the divisions ofthe head having the segmental portionsl to approach and recede from each other. `The smaller diameter of the headis however rigid and incompressible in the direction of the slot 18.

The female-or socket member 1T of the fastener is formed from a. single sheet metal blank, preferably of annular form, said member having a circular opening 19, the wall of which' is continuous and ineXpansible. The diameter of the opening 19 is smaller than the larger diameter of the stud and is such that thc wall of the opening has a close fit on the shank 13, so that when the stud member `is forced into the opening 19 its larger diameter will be reduced or compressed until the segmental portions 15 pass through the opening, said portions then expanding intoengagement with the Wall of the opening 19, as indicated by Fig. 6.

It `will now be seen 'that when the mem- Vbers are interengaged, the segmental portions 15 of the stud member are engaged throughout their entire length with elongated portions of the Wall of the opening `19, so that there is4 a firm engagement between the two members, preventing liability of accidentalA separation of the same.

The central portion of the socket member 17 containing the opening 19 is preferably oifsetto form a tapering or frusto-conical annular f ace 19, adapted to facilitate` the entranceof the head-14into said opening,

said face exerting displacing pressure on the segmental portions 15 of the head tendcompressible, and that portions of 'the head at the ends of its longer axis overhang 'porn tions of the shank 13. A

The stud member thus formed is adapted to cooperate with a socket member having an orifice 19, the wall of which is practically `inexpa'nsible `and is formed Ato compress AAthe longer axis of the head and ca-use 4the overhanging portions thereof to snap into envgagementwith "said Wallwvhenoi-ce is 'exerted in 4.opposite directions on the two members.

The inexpansible circular `Wall of lthe orificed) has la .diameterfgreaterf than the length ol the shorter axisof the 4head, `and Vless than the length of the ,longer axis o'fithe head.` "Ihe circular form otnthe orifice enables the socket `member Ato engage `the stud member without 'the necessity of` causing the socket `wall and the stud head to register, or `in lother Words, without `the vnecessity of turning the socket member to any given or `predeternnned positionto canse `its socket wall to properly'engage @the stud head.`

`I claim;

1. A snap fastener comprising `a stud member having a substantially circnlarhead, the periphery of which is reduced yat intervals'to .'form a largerand a smaller diameter, la circular 4shank of smaller diameter than the larger dia-meter of the head, `and attaching means, the larger diameter .of lthe head being resilient and compressible and ythe r smaller diameter relatively rigid land incompressible, and a `socket member hav-ing attaching means anda circular orifice the Wall of Which 'is inexpansible and hasla diameter less than the largerdiameter of-theghead.

2. .A `snap fastener comprising la stud memberhaving a substantially circular head, la fcircularashank of smaller diameter `than the head, and attaching means, fthe head vbeing slotted to render it resilient and compressible in one-.direction and-,relativelyrigid and `incompressible inanother direction, and its .periphery being` reducedat @intervals to reduce thediameter'ofthefrigid portion, and a socketmemberhaving attaching'meansand `a 'circular orifice, the Wall of which is inex- `pansiblewand has` a diameter-less than the larger diameter of the hea-d.

3; A snap fastener comprising a :stud

signature.

member having a headfthe periphery of `\VhiC'h'has opposite segmental portions and intermediate `reduced.iportions, so .that the head has a portion of relatively large diameter and a portion of smaller diameter, the 'head having also a slot intersecting the reduced Iportions and rendering` the larger diameter resilient and compressible While the smaller diameter is relatively rigid and incompressible, and -a .socket `member havingattacli-ing means and ra circularxoriice, the4 Wall of. which .is 4inexgpansibleand has akdiameterless :than the larger diameter of the head.

l. .A snap `fastener comprising a stud member ,having a head, nthe periphery of Which has-opposite segmental portions land .intermediate .reducedportiona so that the head has a portion olif relatively large diameter and a portion of smaller diameter, thehead-ihaving also `a slot intersecting. the reduced portions and rendering the larger .diameter resilient `and compressible While the ysmal-ler diameter -is relatively rigid and incompressible.,,and.a socket member having attaching means and a circular` orifice, the Wall of which is inexpansible and has a diameter less than the larger diameter of the head, said socket-,member being provided with an ,annnlarntapering face adapted to exert displacing pressure on thesegmental portions .of thehead.

5. A .snap 4fastener .comprising 'a stud Imember having a shank, attaching means,`

gagement -,vvith,portions of .said Wall.

In testimony Whereofl have aiiixed my 'isinon Moss.

-Gopiesgoflths `apaisantmay* be fobtainediornve cents-each, by addressingithe Commissioner of Patents, 

